test.yml

name: Test

on:
  pull_request:
  push:
    branches:
      - main

permissions:
  contents: read

jobs:
  go-test:
    runs-on: ubuntu-latest
    env:
      COVERAGE_MIN: "25.0"
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
          cache: false

      - id: coverage
        name: Run go test with coverage
        run: |
          set -euo pipefail
          go test ./... -covermode=atomic -coverprofile=coverage.out
          go tool cover -func=coverage.out | tee coverage.txt
          total="$(awk '/^total:/ {print $3}' coverage.txt)"
          echo "total=${total}" >> "${GITHUB_OUTPUT}"

      - name: Upload coverage artifacts
        uses: actions/upload-artifact@v4
        with:
          name: coverage-${{ github.sha }}
          path: |
            coverage.out
            coverage.txt
          if-no-files-found: error

      - name: Publish test summary
        run: |
          echo "Total Go coverage: ${{ steps.coverage.outputs.total }}" >> "${GITHUB_STEP_SUMMARY}"

      - name: Enforce minimum coverage
        run: |
          set -euo pipefail
          total="${{ steps.coverage.outputs.total }}"
          pct="${total%\%}"
          min="${COVERAGE_MIN}"
          awk -v pct="${pct}" -v min="${min}" 'BEGIN { exit !(pct+0 >= min+0) }' || {
            echo "coverage gate failed: total=${total}, required>=${min}%"
            exit 1
          }